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为探讨过碳酸钠作业人员的职业危害，作者进行了以下调查。一、对象与方法１．对象：过碳酸钠作业工人５４名为接触组（男３９名、女１５名），年龄２０～４０岁，平均３２岁；专业工龄１～１１年，平均９年。不接触粉尘和毒物的工人６６名为对照组（男５１名、女１５名）...
To investigate the occupational hazards of sodium percarbonate workers, the authors conducted the following survey. First, the object and method 1. PARTICIPANTS: Sodium perchlorate workers 54 were in the contact group (39 males and 15 females), aged 20-40 years old with an average of 32 years old. The professional working age ranged from 1 to 11 years with an average of 9 years. 66 workers without contact with dust and poisons were control group (51 males and 15 females) ...